工程科学学报2017，Vol.39Issue(3)：417-425,9.DOI:10.13374/j.issn2095-9389.2017.03.014
毛细铜/钛复合管材的游动芯头拉拔制备及组织性能
Preparation of the capillary copper/titanium composite pipe by floating-plug drawing processing and its microstructure and properties
摘要
Abstract
A copper/titanium bimetallic composite pipe with high interfacial bonding quality was manufactured by the high-tem-perature rotary swaging forming, and then was processed by the floating-plug drawing process. The forming ability of drawing process and the effect of drawing process on the microstructure and properties of the product were mainly investigated. The results show that the floating plug drawing, especially the wall-reduction drawing, has a great destructive effect on the bonding interface of the pipe, which results in that it is difficult to carry out multi-pass continuous drawing, and single pass drawing volume should not reach over 30%. The annealing at 575℃ for 70 min has little effect on the diffusion of interfacial elements, but it can reduce the work hardening and re-sidual stress. This process makes the pipe' s average peel strength increase from 7. 8 N·mm-1 ( worked state) to 17. 1 N·mm-1 ( an-nealed state) , which considerably improves the subsequent drawing performance of the pipe. A reasonable drawing forming process for the copper/titanium composite pipe was made based on the strict control of drawing wall-reduction, and a capillary size pipe with an excellent bonding property was successfully prepared.关键词
复合管材/拉拔/旋锻复合成形/组织性能Key words
composite pipes/drawing/rotary swaging composite forming/microstructure and properties分类
矿业与冶金引用本文复制引用
刘新华,林一良,付华栋,刘雪峰,谢建新..毛细铜/钛复合管材的游动芯头拉拔制备及组织性能[J].工程科学学报,2017,39(3):417-425,9.基金项目
国家高技术发展计划资助项目(2013AA030706) （2013AA030706）
云南省科技合作资助项目(2015IB012) （2015IB012）
